﻿/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact
*/

var offsetfrommouse = [15, 15]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration = 0; //duration in seconds image should remain visible. 0 for always.
var currentimageheight = 270; // maximum image size.
var posX=0;
var posY = 0;

function getMouseXY(e) {
    var e = (!e) ? window.event : e;
    if (e.pageX || e.pageY) {
        posX = e.pageX;
        posY = e.pageY;
    }
    else if (e.clientX || e.clientY) {
        if (document.body.scrollLeft || document.body.scrollTop) {
            posX = e.clientX + document.body.scrollLeft;
            posY = e.clientY + document.body.scrollTop;
        }
        else {
            posX = e.clientX + document.documentElement.scrollLeft;
            posY = e.clientY + document.documentElement.scrollTop;
        }
    }
}

if (document.getElementById || document.all) {
    document.write('<div id="trailimageid">');
    document.write('</div>');
}

function gettrailobj() {
    if (document.getElementById)
        return document.getElementById("trailimageid").style
    else if (document.all)
        return document.all.trailimagid.style
}

function gettrailobjnostyle() {
    if (document.getElementById)
        return document.getElementById("trailimageid")
    else if (document.all)
        return document.all.trailimagid
}


function truebody() {
    return (!window.opera && document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body
}

function showtrail(idp, imagename, title, description, showthumb, height, filetype) {
    if (height > 0) {
        currentimageheight = height;
    }

    document.onmousemove = followmouse;

    newHTML = window.document.getElementById('div' + idp).innerHTML;

    gettrailobjnostyle().innerHTML = newHTML;

    gettrailobj().visibility = "visible";
    gettrailobj().display = "inline";
    
}

function showtrailBatch(imagename, title, imgwidth, filetype) {
    document.onmousemove = followmouseBatch;
    cameraHTML = '';

    newHTML = '<div style="padding: 5px; background-color: #FFF; border: #000 1px solid ;"  id="trailInnerDiv">';
    newHTML = newHTML + '<h2>' + title + '</h2>';

    newHTML = newHTML + '<div align="center" style="padding: 8px 2px 2px 2px;">';
    if (filetype == 8) { // Video
        newHTML = newHTML + '<object width="380" height="285" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0">';
        newHTML = newHTML + '<param name="movie" value="video_loupe.swf">';
        newHTML = newHTML + '<param name="quality" value="best">';
        newHTML = newHTML + '<param name="loop" value="true">';

        newHTML = newHTML + '<param name="FlashVars" value="videoLocation=' + imagename + '">';
        newHTML = newHTML + '<EMBED SRC="video_loupe.swf" LOOP="true" QUALITY="best" FlashVars="videoLocation=' + imagename + '" WIDTH="380" HEIGHT="285">';
        newHTML = newHTML + '</object></div>';
    } else {
        newHTML = newHTML + '<img src="' + imagename + '" border="0" width="' + imgwidth + '"></div>';
    }

    newHTML = newHTML + '</div>';
    gettrailobjnostyle().innerHTML = newHTML;
    gettrailobj().display = "inline";
    gettrailobj().position = "absolute";
    currentimageheight = $('trailInnerDiv').offsetHeight;

}

function hidetrail() {
    gettrailobj().innerHTML = " ";
    gettrailobj().display = "none"
    document.onmousemove = ""
    gettrailobj().left = "-500px"

}
function findPosX(objId) {
    var obj = document.getElementById(objId);
    var posLeft = obj.offsetLeft;

    while (obj.offsetParent) {
        posLeft = posLeft + obj.offsetParent.offsetLeft;
        if (obj == document.getElementsByTagName('body')[0]) { break; }
        else { obj = obj.offsetParent; }
    }
    return posLeft;
}

function findPosY(objId) {
    var obj = document.getElementById(objId);
    var posTop = obj.offsetTop;

    while (obj.offsetParent) {
        posTop = posTop + obj.offsetParent.offsetTop;
        if (obj == document.getElementsByTagName('body')[0]) { break }
        else { obj = obj.offsetParent; }
    }
    return posTop;
}

function followmouse(e) {

    var xcoord = offsetfrommouse[0]
    var ycoord = offsetfrommouse[1]

    //get the object to display
    //var objectToDisplay;
    //objectToDisplay = gettrailobjnostyle();
    getMouseXY(e);
    //ycoord = posY - (currentimageheigt / 2);
    //alert(posY);
    
    var docwidth = document.all ? truebody().scrollLeft + truebody().clientWidth : pageXOffset + window.innerWidth - 15
    var docheight = document.all ? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

    //if (document.all){
    //	gettrailobjnostyle().innerHTML = 'A = ' + truebody().scrollHeight + '<br>B = ' + truebody().clientHeight;
    //} else {
    //	gettrailobjnostyle().innerHTML = 'C = ' + document.body.offsetHeight + '<br>D = ' + window.innerHeight;
    //}

    if (typeof e != "undefined") {
        if (docwidth - e.pageX < 380) {
            xcoord = e.pageX - xcoord - 300; // Move to the left side of the cursor
        } else {
        xcoord += e.pageX;
        }
        if (docheight - e.pageY < (currentimageheight + 185)) {
            ycoord += e.pageY - Math.max(0, (185 + currentimageheight + e.pageY - docheight - truebody().scrollTop));
        } else {
            ycoord += e.pageY;
        }

    } else if (typeof window.event != "undefined") {
        if (docwidth - event.clientX < 380) {
            xcoord = event.clientX + truebody().scrollLeft - xcoord - 300; // Move to the left side of the cursor
        } else {
            xcoord += truebody().scrollLeft + event.clientX
        }
        if (docheight - event.clientY < (currentimageheight + 185)) {
            ycoord += event.clientY + truebody().scrollTop - Math.max(0, (185 + currentimageheight + event.clientY - docheight));
        } else {
            ycoord += truebody().scrollTop + event.clientY;
        }
    }

    if (ycoord < 0) { ycoord = ycoord * -1; }
    gettrailobj().left = xcoord + "px"
    gettrailobj().top = ycoord + "px"

}

function followmouseBatch(e) {
    var xcoord = offsetfrommouse[0]
    var ycoord = offsetfrommouse[1]

    var docwidth = document.all ? truebody().scrollLeft + truebody().clientWidth : pageXOffset + window.innerWidth - 15
    var docheight = document.all ? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

    var trailInnerDiv = $('trailInnerDiv');
    var currentimageheight = trailInnerDiv.offsetHeight;
    var currentimagewidth = trailInnerDiv.offsetWidth;

    scrollPos = Position.realOffset(truebody());

    if (typeof e != "undefined") {
        if (docwidth - e.pageX < 380) {
            xcoord = e.pageX - xcoord - 300; // Move to the left side of the cursor
        } else {
            xcoord += e.pageX;
        }
        if ((e.pageY - scrollPos[1]) + currentimageheight > docheight) {
            ycoord = -ycoord + (e.pageY - currentimageheight);
        } else {
            ycoord += e.pageY;
        }
    } else if (typeof window.event != "undefined") {
        if (event.clientX + currentimagewidth > docwidth) {
            xcoord = -xcoord + ((event.clientX + scrollPos[0]) - currentimagewidth); // Move to the left side of the cursor
        } else {
            xcoord += (event.clientX + scrollPos[0]);
        }
        if (event.clientY + currentimageheight > docheight) {
            ycoord = -ycoord + ((event.clientY + scrollPos[1]) - currentimageheight);
        } else {
            ycoord += (event.clientY + scrollPos[1]);
        }
    }

    if (ycoord < 0) { ycoord = ycoord * -1; }

    gettrailobj().left = xcoord + "px"
    gettrailobj().top = ycoord + "px"

}
